A to Z challenge - P is for Paul

The A to Z challenge is to write a daily blog post centred around a different letter of the alphabet each day. I will attempt to write a complete story which will continue each day and hopefully draw to a conclusion when we get to Z.
For previous posts click a letter - A , B , C , D, E , F , G, H, I,  J, K, L, M, N, O
 

Paul Delgardo heard DI MacDonald introduce himself as April opened the door. Once he knew they were in the kitchen he sneaked out of the lounge and listen closely at the...